Fused quinoline heterocycles VI: Synthesis of 5<i>H</i>-1-thia-3,5,6-triazaaceanthrylenes and 5<i>H</i>-1-thia-3,4,5,6-tetraazaaceanthrylenes
作者:Ramadan Ahmed Mekheimer、Kamal Usef Sadek、Hisham Ahmed Abd El-Nabi、Afaf Abd El-Hameid Mohamed、Ehab Anwer Ebraheem、Michael B. Smith
DOI:10.1002/jhet.5570420415
日期:2005.5
excess of triethyl orthoformate (TEO) furnished 9a-c. Reaction of 4 with TEO in Ac2O at reflux, gave the simple acetylated compounds, thieno[3,2-c]-quinolines 12 and 13. Refluxing 4 with benzylamine (7d) gave 10, and subsequent treatment with TEO gave the tetracyclic compound 11. Refluxing 13 with an excess of alkylamines 7a-d gave the fhieno[3,2-c]quino-lines 15. Refluxing the aminothienoquinolines
3-氨基-4-氯噻吩并[3,2-c]喹啉-2-羧酸乙酯(4)是一种通用的合成子,它是通过等摩尔量的2,4-二氯喹啉-3-甲腈(1)与巯基乙酸乙酯反应制得的(2)。5-烷基-5- ħ -1-硫杂-3,5,6- triazaaceanfhrylene -2-羧酸9A-C ,新颖perianellated四环heteroaro-matics,通过回流来制备4用过量的伯胺的7A-C ,得到相应的氨基-噻吩并[3,2-c]喹啉8a-c。随后与过量的原甲酸三乙酯(TEO)反应,得到9a-c。4在AC 2中与TEO的反应O在回流下,得到简单的乙酰化化合物,噻吩并[3,2- c ]-喹啉12和13。用苄胺(7d)回流4得到10,然后用TEO处理得到四环化合物11。用过量的烷基胺7a-d回流13,得到fhieno [3,2 - c ] quino -line 15。用过量的原乙酸三乙酯回流氨基噻吩并喹啉8b,得到噻吩并[3